1. School of Electrical Engineering and Automation, Wuhan University, Wuhan, China
2. State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing (LIESMARS), Wuhan University, Wuhan, China
3. State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing (LIESMARS) and the Collaborative Innovation Center of Geospatial Technology, Wuhan University, Wuhan, China
4. College of Computer Technology, Wuhan Institute of Shipbuilding Technology, Wuhan, China
5. College of Civil and Transportation Engineering and Institute of Urban Smart Transportation and Safety Maintenance, Shenzhen University, Shenzhen, China